<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=1.0, initial-scale=1.0" />
    <title>1</title>
    <style>
      body {
        text-align: center;
        font-size: 16px;
      }
      .a {
        margin-bottom: 15px;
      }
    </style>
  </head>
  <body>
    Cookie:
    <div class="a" id="a"></div>

    localStorage:
    <div class="a" id="b"></div>

    aaaa
  </body>

</html>
